Intraspecific variation in plants can affect soil organisms. However, little is known about whether the magnitude of the effect depends on the degree of interaction with the roots. We analyzed effects ...

Documentation of morphologic variation within and among fossil species (and larger clades) provides fundamental data needed for studies of evolution, paleoecology, and the systematic foundation ...

This week, reading unnatural DNA, and young worm mothers explain a wriggly riddle. Your browser does not support the audio element. Plus, how young worm mothers may ...

Concerns about biodiversity tend to focus on the loss of species from ecosystems, but a new study suggests that the loss of variation within species can also have important ecological consequences.

DNA sequence variation that influences gene expression is an important source of variation in higher-order organismal traits. Variants that influence transcription factor binding often affect multiple ...

The genes of an organism play an important role in the development of characteristic traits. However, even the traits of genetically identical clones that grow up under the same environmental ...

THERE have been several studies on the interrelation of nose and skin bacteria in unisolated groups of human beings, 1–3 but little has been written about variations in the micro-organisms of the nose ...

For years, scientists have been fascinated with how DNA mutations impart phenotypic changes. However, epigeneticists including Andrew Pospisilik think mutations are responsible for only a portion of ...

RNAi is a powerful tool to used to define cellular mechanisms, and analyze the gene functions of various organisms in laboratories worldwide. Credit: petarg/ Shutterstock.com Fragments of RNA ...

SEATTLE — Apr. 22, 2002 — Researchers at Fred Hutchinson Cancer Research Center have harnessed the power of yeast — a simple, single-celled organism crucial for brewing beer and baking bread — as a ...

In nature, ecosystems are tightly linked through the flow of organisms, detritus, and nutrients across boundaries arbitrarily imagined by humans. These systems are deeply in tune with seasonal changes ...

Holobiont biology recognizes animals, plants, fungi and other hosts as dynamic assemblages of interacting and/or interdependent host and microbial cells, just as the host body is recognized as a ...